HFT University

# Claude Fable 5 Calls "Fill This Buffer Fast" a Cyber Attack I asked Claude Fable 5, the model Anthropic has been pushing everywhere this month, to write a C++ function that fills a caller-provided buffer as fast as possible. It refused. Not a hedge, not

# HFT Latency Monitoring with Probabilistic Calling Context You have a feed handler. It pulls a multicast stream off the exchange, parses each packet, decodes the ITCH messages packed inside, applies them to an order book, and hands the top of book to a s

The C++ documentary dropped today, and it is a fine piece of filmmaking and a slightly dishonest piece of history. Not in what it says. In what it lets you assume. Two and a half hours of the people who were actually in the room: Stroustrup, Stepanov, Sut

# There Is a Mountain Lion in the Datacenter P-22 in the backyard, EINTR in the syscall return, and the oldest guild fight in computing. !A mountain lion walks down the aisle of a hyperscale datacenter, rack LEDs reflecting off the fur.(hero.png) On the t